Aldes 6" Backdraft Damper - BDD6: Tools & Home Improvement

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Aldes 6" Backdraft Damper - BDD6 May 10th 2013, 08:16 Category: Tools & Home Improvement Vendor: + Price For Both: $44.17 Show availability and shipping detailsBuy the selected items together This item: Aldes 6" Backdra Product Description : Backdraft damper with galvanized steel collar and lightweight aluminum damper blades. Spring loaded for positive closure. Fits 6" Round Duct ? 20 gauge galvanized steel housing? Aluminum spring loaded butterfly damper blades? Damper seals against EDPM rubber gasket in closed position for minimal leakage? Gasket designed for use in temperatures from - 22F to 180F? Require from 0.04 to 0.08 inches W.G. to begin to open? May be installed in any position. ? Simple installation - entire assembly inserts into duct? Exterior foam gaskets assure a tight seal against interior surface of duct

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